
1) Red skin spot 2) Red spot on the skin 3) Spot of an illness 4) Spot of illness 5) Spot on the body 6) Tapeworm larva 
Found on 
https://www.crosswordclues.com/clue/measle

• (n.) A tapeworm larva. See 2d Measles, 4. • (n.) A leper.
Found on 
http://thinkexist.com/dictionary/meaning/measle/
 Mea'sle  noun
Mea'sle  noun [ Middle English 
 mesel , Old French 
 mesel , Late Latin 
 misellus , Latin 
 misellus unfortunate, dim. of 
 miser . See 
 Miser .] A leper. [ Obsolete] [ Written also 
 meazel , and 
 mesel .] 
 Wyclif (Matt. x. 8. ). Found on 
http://www.encyclo.co.uk/webster/M/37

Type: Term Pronunciation: mē′zĕl Definitions: 1. The larva (Cysticercus cellulosae) of Taenia solium, the pork tapeworm; C. cellulosae is less frequently used to designate cysticerci of T. solium. 2. The larva (Cysticercus bovis) of Taenia saginata, the beef tapeworm; the term C. bovis is less frequently used to designate cysticerci...
Found on 
http://www.medilexicon.com/medicaldictionary.php?t=53279
  No exact match found.